Periodical Literature 127 



which approaches in extractibles the mushroom extract, but not 

 in delicacy of taste. While the three extracts do not differ very 

 essentially in amounts of organic substance, nitrogen contents and 

 ash, the composition of the extractibles is very different ; especially 

 the presence of Mannit sugar in the mushroom extract is char- 

 acteristic. 



In general, mushroom extract must be considered equal in 

 value to beef extract. 



For food, mushrooms should always be used in unripe condition. 



One section of the article is devoted to the preparation and 

 conserving of mushrooms. The author inveighs against the 

 French conserving method which gets rid of all extractible 

 materials in order to secure a good-looking, white material. To 

 secure a satisfactory extract the mushrooms must first be killed 

 by drying or boiling water, and then be extracted with cold water. 



A whole mushroom cook book is published by Professor Macku, 

 and a number of illustrated identification books have lately come 

 on the market. 



Ueber die Kultur, den Extractgehalt und die Konservierung essbarer Pilze. 

 Zeitschrift fur Forst- und Jagdwesen, October, 1915, pp. 583-601. 



The Hessian Oberforstrat Joseph brings 



Damage together the results of observations during 



by 1914 of lightning damage in the forests 



Lightning of the grand duchy of Hesse-Darmstadt. 



The data were gathered by the rangers. 



The most interesting statistics are as follows : 



Number of trees struck by months : March 1, April 5, May 13, 

 June 186, July 184, August 10; total 399. With the exception 

 of 3 trees, these were all struck in the afternoons. 



Trees Struck 



Species Per Cent 

 Species Per Cent of All Forests 



Pine 48.5 38.1 



Oak 29.8 12.9 



Spruce 11.4 14.9 



Larch 4.0 0.4 



Beech 3.4 31.3 



Fir 0.4 0.2 



Alder 1.7 1.0 



Birch 0.2 1.0 



Aspen 0.2 1.0 



Poplar 0.2 1.0 



A. B. R. 



Beobachiungen iiber Blitzschldge. Allgemeine Forst- und Jagd-Zeitung, 

 July, 1915, pp. 165-70. 



